7 papers
Numerical Semigroups with unique Apéry expansions
Sudip Pandit, Joydip Saha, Indranath Sengupta
In this paper, we carry out a fairly comprehensive study of two special classes of numerical semigroups, one generated by the sequence of partial sums of an arithmetic progression…
Affine monomial curves
Indranath Sengupta
We discuss some research problems on affine monomial curves, from the perspective of computation.
Derivation modules for Sum and Gluing
Joydip Saha, Indranath Sengupta
In this paper we explicitly compute the derivation module of quotients of polynomial rings by ideals formed by the sum or by some other gluing technique. We discuss cases of monomi…
Moh's example of algebroid space curves
Ranjana Mehta, Joydip Saha, Indranath Sengupta
In this paper we revisit the family of algebroid space curves defined by Moh and find an explicit minimal generating set for the defining ideal.
Quadrics defined by skew-symmetric matrices
Joydip Saha, Indranath Sengupta, Gaurab Tripathi
In this paper we propose a model for computing a minimal free resolution for ideals of the form , where is an skew-symmetric matrix with inde…
Almost Maximal Numerical Semigroups formed by Concatenation of Arithmetic Sequences
Ranjana Mehta, Joydip Saha, Indranath Sengupta
We study numerical semigroups with the property "multiplicity= embedding dimension+1", generated by concatenation of arithmetic sequences.